[INFO] cloning repository https://github.com/eloc3147/lightbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eloc3147/lightbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feloc3147%2Flightbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feloc3147%2Flightbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 447f9862c11aafe4ab58c8f37d24bd48c5a6ca51
[INFO] checking eloc3147/lightbox against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feloc3147%2Flightbox" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/eloc3147/lightbox on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/eloc3147/lightbox
[INFO] finished tweaking git repo https://github.com/eloc3147/lightbox
[INFO] tweaked toml for git repo https://github.com/eloc3147/lightbox written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/eloc3147/lightbox already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6fff54582c0888585f627f369a4d425a79ba066328014d4cc06eb173fe38f0b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e6fff54582c0888585f627f369a4d425a79ba066328014d4cc06eb173fe38f0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6fff54582c0888585f627f369a4d425a79ba066328014d4cc06eb173fe38f0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6fff54582c0888585f627f369a4d425a79ba066328014d4cc06eb173fe38f0b", kill_on_drop: false }`
[INFO] [stdout] e6fff54582c0888585f627f369a4d425a79ba066328014d4cc06eb173fe38f0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c66711d48cf5e99bd0ef1ddeb5d3d392fd01f6c0d8eb1edf7210b8fbdc4d49f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2c66711d48cf5e99bd0ef1ddeb5d3d392fd01f6c0d8eb1edf7210b8fbdc4d49f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling nix v0.18.0
[INFO] [stderr]    Compiling cpal v0.12.1 (https://github.com/RustAudio/cpal#58164830)
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling alsa-sys v0.3.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking average v0.10.6
[INFO] [stderr]     Checking microfft v0.3.0
[INFO] [stderr]     Checking rppal v0.9.0
[INFO] [stderr]     Checking thread-priority v0.2.0
[INFO] [stderr]     Checking blinkt v0.5.0
[INFO] [stderr]     Checking alsa v0.4.2
[INFO] [stderr]     Checking ctrlc v3.1.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]     Checking thiserror v1.0.21
[INFO] [stderr]     Checking rodio v0.12.0 (https://github.com/RustAudio/rodio#7d61d283)
[INFO] [stderr]     Checking lightbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `VOLUME_MUL`
[INFO] [stdout]   --> src/main.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | const VOLUME_MUL: f32 = 1.0 / 10000.0;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `VOLUME_MUL`
[INFO] [stdout]   --> src/main.rs:29:1
[INFO] [stdout]    |
[INFO] [stdout] 29 | const VOLUME_MUL: f32 = 1.0 / 10000.0;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 47.39s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2c66711d48cf5e99bd0ef1ddeb5d3d392fd01f6c0d8eb1edf7210b8fbdc4d49f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c66711d48cf5e99bd0ef1ddeb5d3d392fd01f6c0d8eb1edf7210b8fbdc4d49f", kill_on_drop: false }`
[INFO] [stdout] 2c66711d48cf5e99bd0ef1ddeb5d3d392fd01f6c0d8eb1edf7210b8fbdc4d49f